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Freezing Atoms in Motion: Principles of Femtochemistry and Demonstration by Laser Stroboscopy

Baskin, J. Spencer and Zewail, Ahmed H. (2001) Freezing Atoms in Motion: Principles of Femtochemistry and Demonstration by Laser Stroboscopy. Journal of Chemical Education, 78 (6). pp. 737-751. ISSN 0021-9584. https://resolver.caltech.edu/CaltechAUTHORS:20160819-085641131

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Abstract

The motion of atoms in molecules and in the course of reactions occurs on infinitesimal length and time scales, down to the angstrom (0.1 nm or 10^(-8) cm) length and femtosecond (10^(-15) s) time scales. To observe the behavior of atoms in motion, which is fundamental to chemical and biological transformations of molecular structures, femtosecond "stop-motion photography" with lasers is the methodology employed. This contribution highlights the basic concepts involved in the methodology and in the development of the field of femtochemistry. The concepts are described with the aid of a laser demonstration designed at Caltech and used elsewhere as an exhibit.


Item Type:Article
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http://dx.doi.org/10.1021/ed078p737DOIArticle
http://pubs.acs.org/doi/abs/10.1021/ed078p737PublisherArticle
Additional Information:© 2001 American Chemical Society. We thank the National Science Foundation for the support of this educational research. We wish also to thank the Nobel Museum Project (Stockholm) for triggering our interest in this effort, and Carsten Kötting and Dongping Zhong for help with three of the figures.
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Issue or Number:6
Record Number:CaltechAUTHORS:20160819-085641131
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20160819-085641131
Official Citation:Freezing Atoms in Motion: Principles of Femtochemistry and Demonstration by Laser Stroboscopy J. Spencer Baskin and Ahmed H. Zewail Journal of Chemical Education 2001 78 (6), 737 DOI: 10.1021/ed078p737
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:69773
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:23 Aug 2016 18:26
Last Modified:03 Oct 2019 10:25

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